Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@xxxxxxxxx>
---
.gitignore | 1 +
Documentation/git-checkout.txt | 3 +-
Documentation/git-update-index.txt | 13 ++++++++++++
Makefile | 2 +-
builtin-update-index.c | 16 ++++++++++++++-
t/t2104-update-index-no-checkout.sh | 36 +++++++++++++++++++++++++++++++++++
test-index-version.c | 14 +++++++++++++
7 files changed, 82 insertions(+), 3 deletions(-)
create mode 100755 t/t2104-update-index-no-checkout.sh
create mode 100644 test-index-version.c
diff --git a/.gitignore b/.gitignore
index bbaf9de..0c35577 100644
--- a/.gitignore
+++ b/.gitignore
@@ -147,6 +147,7 @@ test-date
test-delta
test-dump-cache-tree
test-genrandom
+test-index-version
test-match-trees
test-parse-options
test-path-utils
diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt
index 4bd9eba..2b344e1 100644
--- a/Documentation/git-checkout.txt
+++ b/Documentation/git-checkout.txt
@@ -196,7 +196,8 @@ to index, it will be marked "checkout" unless sparse patterns are
applied. Unmerged files are always "checkout". When you checkout new
files using "git checkout <file>" they will be automatically marked
"checkout". Other commands such as "git apply" can also checkout new
-files if they are needed.
+files if they are needed. linkgit:git-update-index[1] can be used to
+update "checkout/no-checkout" status in index.
"No-checkout" status is very similar to "assume-unchanged bit"
(see linkgit:git-update-index[1]). The main difference between them
diff --git a/Documentation/git-update-index.txt b/Documentation/git-update-index.txt
index 1d9d81a..ec03e05 100644
--- a/Documentation/git-update-index.txt
+++ b/Documentation/git-update-index.txt
@@ -15,6 +15,7 @@ SYNOPSIS
[--cacheinfo <mode> <object> <file>]\*
[--chmod=(+|-)x]
[--assume-unchanged | --no-assume-unchanged]
+ [--checkout | --no-checkout]
[--ignore-submodules]
[--really-refresh] [--unresolve] [--again | -g]
[--info-only] [--index-info]
@@ -99,6 +100,18 @@ in the index e.g. when merging in a commit;
thus, in case the assumed-untracked file is changed upstream,
you will need to handle the situation manually.
+--checkout::
+--no-checkout::
+ When one of these flags is specified, the object name recorded
+ for the paths are not updated. Instead, these options
+ set and unset the "no-checkout" bit for the paths. This
+ bit is used for marking files for sparse checkout. If
+ a path is marked "no-checkout", then it should not be
+ checked out unless requested by user or needed for a git
+ command to function.
+ See linkgit:git-checkout[1] for more information about
+ sparse checkout.
+
-g::
--again::
Runs 'git-update-index' itself on the paths whose index
diff --git a/Makefile b/Makefile
index e0c03c3..edb33cb 100644
--- a/Makefile
+++ b/Makefile
@@ -1327,7 +1327,7 @@ endif
### Testing rules
-TEST_PROGRAMS = test-chmtime$X test-genrandom$X test-date$X test-delta$X test-sha1$X test-match-trees$X test-parse-options$X test-path-utils$X
+TEST_PROGRAMS = test-chmtime$X test-genrandom$X test-date$X test-delta$X test-sha1$X test-match-trees$X test-parse-options$X test-path-utils$X test-index-version$X
all:: $(TEST_PROGRAMS)
diff --git a/builtin-update-index.c b/builtin-update-index.c
index ae94739..7514aff 100644
--- a/builtin-update-index.c
+++ b/builtin-update-index.c
@@ -24,6 +24,7 @@ static int info_only;
static int force_remove;
static int verbose;
static int mark_valid_only;
+static int mark_no_checkout_only;
#define MARK_FLAG 1
#define UNMARK_FLAG 2
@@ -276,6 +277,11 @@ static void update_one(const char *path, const char *prefix, int prefix_length)
die("Unable to mark file %s", path);
goto free_return;
}
+ if (mark_no_checkout_only) {
+ if (mark_ce_flags(p, CE_NO_CHECKOUT, mark_no_checkout_only == MARK_FLAG))
+ die("Unable to mark file %s", path);
+ goto free_return;
+ }
if (force_remove) {
if (remove_file_from_cache(p))
@@ -386,7 +392,7 @@ static void read_index_info(int line_termination)
}
static const char update_index_usage[] =
-"git update-index [-q] [--add] [--replace] [--remove] [--unmerged] [--refresh] [--really-refresh] [--cacheinfo] [--chmod=(+|-)x] [--assume-unchanged] [--info-only] [--force-remove] [--stdin] [--index-info] [--unresolve] [--again | -g] [--ignore-missing] [-z] [--verbose] [--] <file>...";
+"git update-index [-q] [--add] [--replace] [--remove] [--unmerged] [--refresh] [--really-refresh] [--cacheinfo] [--chmod=(+|-)x] [--assume-unchanged] [--checkout|--no-checkout] [--info-only] [--force-remove] [--stdin] [--index-info] [--unresolve] [--again | -g] [--ignore-missing] [-z] [--verbose] [--] <file>...";
static unsigned char head_sha1[20];
static unsigned char merge_head_sha1[20];
@@ -652,6 +658,14 @@ int cmd_update_index(int argc, const char **argv, const char *prefix)
mark_valid_only = UNMARK_FLAG;
continue;
}
+ if (!strcmp(path, "--checkout")) {
+ mark_no_checkout_only = UNMARK_FLAG;
+ continue;
+ }
+ if (!strcmp(path, "--no-checkout")) {
+ mark_no_checkout_only = MARK_FLAG;
+ continue;
+ }
if (!strcmp(path, "--info-only")) {
info_only = 1;
continue;
diff --git a/t/t2104-update-index-no-checkout.sh b/t/t2104-update-index-no-checkout.sh
new file mode 100755
index 0000000..be9f913
--- /dev/null
+++ b/t/t2104-update-index-no-checkout.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+#
+# Copyright (c) 2008 Nguyễn Thái Ngọc Duy
+#
+
+test_description='git update-index no-checkout bits (a.k.a sparse checkout)'
+
+. ./test-lib.sh
+
+test_expect_success 'setup' '
+ mkdir sub &&
+ touch 1 2 sub/1 sub/2 &&
+ git add 1 2 sub/1 sub/2
+'
+
+test_expect_success 'index is at version 2' '
+ test "$(test-index-version < .git/index)" = 2
+'
+
+test_expect_success 'update-index --no-checkout' '
+ git update-index --no-checkout 1 sub/1 &&
+ test -z "$(git ls-files --sparse|grep 1)"'
+
+test_expect_success 'index is at version 3 after having some no-checkout entries' '
+ test "$(test-index-version < .git/index)" = 3
+'
+
+test_expect_success 'update-index --checkout' '
+ git update-index --checkout 1 sub/1 &&
+ test "$(git ls-files)" = "$(git ls-files --sparse)"'
+
+test_expect_success 'index version is back to 2 when there is no no-checkout entry' '
+ test "$(test-index-version < .git/index)" = 2
+'
+
+test_done
diff --git a/test-index-version.c b/test-index-version.c
new file mode 100644
index 0000000..bfaad9e
--- /dev/null
+++ b/test-index-version.c
@@ -0,0 +1,14 @@
+#include "cache.h"
+
+int main(int argc, const char **argv)
+{
+ struct cache_header hdr;
+ int version;
+
+ memset(&hdr,0,sizeof(hdr));
+ if (read(0, &hdr, sizeof(hdr)) != sizeof(hdr))
+ return 0;
+ version = ntohl(hdr.hdr_version);
+ printf("%d\n", version);
+ return 0;
+}
--
1.6.0.2.488.gf604a
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